Screen-door check.



No. 844,078. PATENTED FEB. 12, 1907;

- D. W. ANDERSON.

SCREEN DOOR CHECK.

APPLICATION FILED APR.19,1906.

2 SHEETS-SHEET'L PATENTED FEB. 12, 1907.

D. W. ANDERSON. SCREEN DQOR CHECK.

J/VVENTOR. David W Amie rs on.

WITNESSES ATTORNEY UNTTED STATES PATENT orrion.

SCREEN-DOOR CHECK.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed April 19, 1906. Serial No. 312,642.

To ctZZ whom it nttty concern.-

Be it known that 1, DAVID W. ANDERSON, of La Fayette, county of Tippecanoe, and State of Indiana, have invented a certain new and useful Screen-Door Check; and I do hereby declare that the following is a full,

. clear, and exact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts.

The object of this invention is to provide a very simple and economical means for preventing the slamming of screendoors and the like.

The full nature of the invention will be more fully understood from the accompanying drawings and the following description and claims.

In the drawings, Figure 1 is a side elevation of the door-check with one side removed and the rivets in section and the parts in unoperated position. Fig. 2 is the same with the parts in the operated position after the door is closed and showing also a part of the stop on the door. Fig. 3 is a top view of what is shown in Fig. 1. Fig. 4 is a per spective view of the dog. Fig. 5 is a section on line 5 5 of Fig. 1. Fig. 6 is a section on line 6 6 of Fig. 2. Fig. 7 is a perspective view of the stop on the door and the adjacent end of the door-check. Fig. 8 is a transverse section through a part of a door and door-casing immediately above the doorcheck, parts being broken away and the door being shown closed in dotted lines. Fig. 9 is a perspective view of one end of the sliding member of the door-check. Fig. 10 is the same as the central part of Fig. 2, showing the locking position of the dog when it checks the door during the closing movement. Fig. 11 is an elevation of a door equipped with. my device.

10 is a door-casing, and 11 is the door hinged thereto by a spring-hinge of usual form. The full lines in F ig. 8 show the open position of the door and the dotted lines the closed position.

A bracket 12 is secured upon the doorcasing with a pair of horizontal ears, to which the head 13 of a pair of parallel plates 14 is pivoted. About the pivot a spring 15 is mounted and arranged so as to tend to hold the door-check against the door, as shown in Fig. 8. Said plates 14 are spaced apart and held by the rivets 16 and 17.

A telescoping member of the door-check consists of the parallel bars 20, that are connected at one end by the head 21 and at the other end carry a rubber roller 22. This sliding member slides between the plates 14 and on the rivets 16 and 17 as seen in Fig. 1. The head 21 has a hole 23 in it, through which a pin 24 from the head 13 extends. This pin carries a spring 25, that tends to force the telescoping member outward and is compressed by the inward movement of the movable member during the closing of the door, as appears in Fig. 2. When the door is opened, the spring forces the movable member to its outer position, as shown in Fig. 1.

Upon the door there is a stop 30, secured by screws 31, extending through slots 32, so that said stop may be adjusted. This stop serves as an abutment to engage the doorcheck in the closing of the door. As the door closes the stop engages the rubber roller 22 of the door-check and forces the movable member thereof backward in the pivoted member against the action of spring 25. During such backward movement and just before the door is closed the lug on the upper bar 20 of the movable member of the door-check engages the point 41 of the grav ity-dog 42, pivoted by the pin 43 to the plates 14. by this engagement the dog is thrown into the locking position, (shown in Fig. 10,) where the stop-lug 44 on the bar 20 of the movable member of the door-check engages the point 45 of the dog. This stops the door before it slams, and during the rebound, which occurs immediately arter such stoppage, the point 45 disengages from the lug 44, and the dog by gravity assumes its normal position, so that the door can finish its closing movement, where the parts of the door-check assume the position shown in Fig. 2. As seen in Fig. 6, the lugs 40 and 44 are not in line with each other, so that the point 45 of the dog will not engage the lug 40 at any time.

What I claim as my invention, and desire to secure by Letters latent, is-

1. The combination with a door, and a door-casing, of a stop on one of said members, and a door-check on the other member adapted to engage said stop, said door-check consisting of a pivoted portion and another portion slidable thereon, and an automatically-releasable trip for checking the sliding movement of said sliding portion before the closing movement of the door is completed.

2. The combination with' a spring-door and a door-casing, of an adjustable stop on I said sliding portion and so as to be held in a one of said members and a door-check on the other of said members, said door-check consisting of a spring-controlled pivoted portion and another portion slidable thereon, a spring that tends to hold said movable portion in its outer position, a gravity-trip mounted on said pivoted portion, and lugs on said movable portion in position to engage said trip during the closing movement of the door.

3. The combination with a door and a door-casing, of a stop on one of said mem bers, and a door-check on the other member adapted to engage said stop, said door-check consisting of a pivoted portion and another portion slidable thereon, a trip pivotally mounted on said pivoted portion adjacent certain position by gravity and that is provided with two trip projections, and two lugs upon the movable portion adapted to engage said trip projections during the movement of said movable portion and stop its movement when the trip is actuated, whereby after the checking movement the trip will by gravity move out of engagement with said lugs and permit the final movement of the door.

In witness whereof I have hereunto aflixed my signature in the presence of the witnesses herein named.

DAVID W. ANDERSON.

Witnesses:

FRED. EcKEL, JOHN E. BIXLER. 

